Answer this question truthfully
### Question: What causes Dyspnea?
### Response: Shortness of breath has many different causes:
A blockage of the air passages in your nose, mouth, or throat may lead to difficulty breathing. Heart disease can cause breathlessness if your heart is unable to pump enough blood to supply oxygen to your body. If your brain, muscles, or other body organs do not receive enough oxygen, a sense of breathlessness may occur. Lung disease can cause breathlessness. Sometimes emotional distress, such as anxiety, can lead to difficulty breathing.
The following problems may cause breathing difficulty:
Problems with the lungs: Blood clot in the arteries of the lungs (pulmonary embolism) Bronchiolitis Chronic obstructive pulmonary disease (COPD), asthma, and other chronic lung problems Pneumonia Pulmonary hypertension
Problems with the airways leading to the lungs: Choking on something stuck in the airways Croup Epiglottitis
Problems with the heart: Heart attack or angina Heart defects from birth (congenital heart disease) Heart failure Heart rhythm disturbances (arrhythmias)
Other problems: Allergies (such as to mold, dander, or pollen) Climbing to high altitudes where there is less oxygen in the air Compression of the chest wall Dust in the environment Hiatal hernia Obesity Panic attacks